Home / 13,125.30-19,690.92-4,805.28

Finding the Fourth Proportional to 13,125.30, 19,690.92 and 4,805.28

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Solution

The fourth proportional to 13,125.30, 19,690.92 and 4,805.28 is: 7,209.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,125.30 : 19,690.92 = 4,805.28 : x
  2. Step 2: Convert to fraction form
    13,125.30/19,690.92 = 4,805.28/x
  3. Step 3: Cross multiply
    13,125.30x = 19,690.92 × 4,805.28
  4. Step 4: Simplify right side
    13,125.30x = 94,620,384.06
  5. Step 5: Solve for x
    x = 94,620,384.06/13,125.30
  6. Step 6: Final answer
    x = 7,209.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.